If your basement or backyard suite isn’t registered with the city, you don’t have to legalize it before you sell. But doing it before Calgary’s amnesty program ends on December 31, 2026 could save you thousands in permit fees and add real, appraisable value to your listing. After that date, the fee waiver disappears. Legalizing gets more expensive and more complicated, right when buyer financing on suited homes is under more scrutiny than ever.
By Steve Kabachia | August 30, 2026
If you own a Calgary home with a basement suite, a backyard suite, or any kind of secondary living space that was never registered with the city, you’ve probably wondered whether it’s worth doing anything about before you sell. I get this question constantly right now, and there’s a real reason for that. The City of Calgary’s Secondary Suite Amnesty Program waives development permit and registration fees for existing unregistered suites, and it’s set to end December 31, 2026.
That’s not a soft deadline. Council has already extended it once. Registered secondary suites in Calgary have doubled since 2024, which tells you two things: a lot of homeowners are acting on this, and a lot of homes are still sitting with suites that aren’t on the books.
If you’re planning to sell in the next year, this is exactly the kind of detail that can quietly complicate your transaction, or quietly add value to it. It depends on which side of the deadline you’re on.
Why an unregistered suite matters when you sell
An illegal or unregistered suite doesn’t automatically stop a sale in Calgary. But it does create friction at almost every stage of the transaction, and buyers who’ve done their homework will ask about it.
Here’s where it shows up:
– Financing. Some lenders won’t count rental income from an unregistered suite toward a buyer’s mortgage qualification, which can shrink your buyer pool or change what they’re able to offer.
– Insurance. An unpermitted suite can affect a buyer’s ability to get standard home insurance at a normal rate. It may have affected yours the whole time you’ve owned the home.
– Disclosure. Alberta’s seller disclosure obligations mean you generally need to tell buyers what you know about the suite’s status. A vague answer here makes buyers nervous, and nervous buyers negotiate harder.
– Your RPR. If you’re ordering a Real Property Report before listing, which we recommend for almost every seller, an unregistered suite addition can show up as a discrepancy that needs explaining. I’ve walked through exactly what an RPR does and doesn’t cover in “What Is an RPR — and Do You Need One to Sell Your Calgary Home?” on the Home Owners Hub, if you want the full picture on that piece of the puzzle.
– Appraisal. An appraiser may not be able to credit the suite’s income potential or added square footage the same way they would for a registered one.
None of this means you’re stuck. It means the suite’s status becomes a conversation in your sale whether you address it or not. I’d rather my sellers control that conversation than react to it.
What legalizing actually involves, and what it costs
The amnesty program specifically waives the development permit and suite registration fees for suites that already exist. It doesn’t waive the cost of bringing the suite up to code, and that’s the part sellers usually underestimate.
A typical path looks like this:
1. Book an inspection with the city or a private consultant to identify what’s missing: things like egress window size, ceiling height, fire separation, or smoke and carbon monoxide detector placement.
2. Complete the required upgrades. For a suite that’s close to compliant, this might run a few thousand dollars. For an older suite with real gaps, think undersized windows or no separate electrical panel, it can cost a lot more.
3. Submit for registration through the city’s Secondary Suite Registry, which is the part the amnesty makes free until the deadline.
4. Get your final inspection and registration confirmation, which is what you’ll actually show a buyer or their lender.
Timeline matters here. Between booking an inspection, completing any upgrades, and getting through the city’s process, this isn’t a two-week job. If you’re thinking about listing in the spring, the honest answer is that late 2026 is when you’d want to start, not January.
Does it actually add value?
This is the question underneath the question, and it depends on your specific home.
A registered suite typically supports a stronger asking price because it converts speculative rental income into something a buyer’s lender can actually count. In neighbourhoods across Calgary where suited homes are common, and in mortgage-helper-friendly communities like Airdrie and Cochrane, buyers are actively searching for legal suites because it changes their financing math.
If your suite already meets most code requirements and just needs registration, legalizing before you list is close to a no-brainer while the fee waiver is still in place. If your suite needs substantial work to qualify, the calculation gets more personal: sometimes it makes sense to invest before listing, and sometimes it makes more sense to disclose the suite’s current status clearly, price accordingly, and let a buyer decide what they want to do with it.
This is exactly the kind of question I walk my clients through before we even put a sign in the yard. The right answer depends on your suite’s actual condition, your timeline, and what similar homes with legal suites are commanding right now.
What we tell every seller who asks this question
Every seller we talk to about this wants a simple yes or no, and we understand that. But the honest answer is that it depends on how close your suite already is to compliant, and how much runway you have before you want to list.
What we don’t recommend is ignoring it and hoping it doesn’t come up. Buyers ask. Lenders ask. And with the amnesty deadline creating more awareness of this issue across the city right now, it’s coming up more often.
If Calgary’s blanket rezoning changes are also part of your thinking, since they touch on similar questions about what your property is actually permitted to have on it, we broke that down in “Calgary’s Rezoning Repeal: What It Means for Sellers” on the Home Owners Hub. Between the rezoning changes and the suite amnesty deadline, this is a busier-than-usual moment for anything touching Calgary’s land use rules. It’s worth having someone walk through your specific property before you list.
Frequently Asked Questions
What is Calgary’s Secondary Suite Amnesty Program?
It’s a City of Calgary program that waives the development permit and registration fees for existing secondary suites that were built without proper permits. It’s been extended multiple times and is currently set to end December 31, 2026.
Can I sell my house in Calgary with an illegal secondary suite?
Yes, you can sell a home with an unregistered suite. You’ll need to disclose what you know about its status, and be prepared for it to affect buyer financing, insurance, and negotiations. It doesn’t prevent a sale.
How much does it cost to legalize a secondary suite in Calgary?
The amnesty waives the permit and registration fees, but you’ll still pay for any code upgrades your suite needs: commonly egress windows, fire separation, or electrical work. Costs vary widely depending on how close the suite already is to code, from a few thousand dollars to significantly more for older suites needing structural changes.
Does a legal secondary suite increase my home’s value in Calgary?
Generally, yes, because a registered suite lets a buyer’s lender count the rental income toward their mortgage qualification, which supports a stronger offer. The exact impact depends on your neighbourhood, the suite’s condition, and current demand for suited homes in your price range.
How long does it take to register a secondary suite in Calgary?
Between scheduling an inspection, completing any required upgrades, and going through the city’s registration process, most homeowners should plan for several weeks to a few months. It can take longer if the suite needs substantial code work. If you’re hoping to list in spring, it’s worth starting the process well before the December 31, 2026 deadline.
If you’re weighing whether your secondary suite is worth legalizing before you list, or you just want a straight answer on what your Calgary home is worth as-is, Len T. Wong & Associates offers a free, no-obligation home evaluation. No pressure, just a clear picture so you can make the right call. Book your free home evaluation here: https://calgaryluxuryhomesearch.com/free-home-evaluation/
—
About Steve Kabachia
Steve Kabachia is a Managing Partner at Len T. Wong & Associates — RE/MAX Complete Realty, serving Calgary and the surrounding communities of Airdrie, Cochrane, Okotoks, and Chestermere. With 10 years of experience specializing in move-up buyers, downsizers, luxury properties, and investment real estate, Steve brings the kind of straight talk his clients count on, whether they’re pricing a home to sell or navigating a complex purchase. He starts where you are and takes the journey alongside you. Connect with Steve at stevekabachia.com or reach him directly at 587-437-9017.
